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Division 7 — GENERAL DESIGN STANDARDS›Chapter 11 — REGULATION OF HILLSIDE AND/OR RIDGELINE DEVELOPMENTS

87.1130 Average Slope Calculations.

Yucaipa Zoning Code · 2026-06 edition · updated 2026-09-10 · Yucaipa

(a) The average cross slope formula for calculating average slopes for any given site shall be as follows:

Average Cross Slope
=
I = Contour Interval
L = Contour Length		 I x L x 0.0023
A

0.0023 = Constant to Convert Square Feet to Acres and Slope to Percent

A = Acres in Site

(b) Where there is a dramatically different landform character in the topography of any one site, the site may be divided into several distinct areas and average slope calculated separately, at the discretion of the Community Development Director.

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▸Contents — Yucaipa Zoning Code
Yucaipa Zoning Code
  1. Division 1 — GENERAL PROVISIONS
  2. Division 2 — REVIEWING AUTHORITIES
  3. Division 3 — PROCEDURES
  4. Division 1
  5. Division 2
  6. Division 3
  7. Division 4
  8. Division 5
  9. Division 6
  10. Division 7
  11. Division 4 — LAND USES
  12. Division 6 — PLANNING AREAS
  13. ▸Division 7 — GENERAL DESIGN STANDARDS
    Overview
    1. 87.0101 Intent.
    2. 87.0105 Modification of Standards.
    3. Chapter 2 — DEDICATIONS AND STREET IMPROVEMENTS
    4. Chapter 3 — LOT AREA
    5. Chapter 4 — HEIGHT REGULATIONS
    6. Chapter 5 — PROJECTIONS INTO YARDS
    7. Chapter 6 — PARKING REGULATIONS
    8. Chapter 7 — SIGN REGULATIONS
    9. Chapter 8 — GENERAL SETBACK REGULATIONS
    10. Chapter 9 — PERFORMANCE STANDARDS
    11. Chapter 10 — CONDITIONAL GRADING COMPLIANCE
    12. ▸Chapter 11 — REGULATION OF HILLSIDE AND/OR RIDGELINE DEVELOPME…
      Overview
      1. 87.1105 General Provisions.
      2. 87.1110 Applicability.
      3. 87.1115 Definitions.
      4. 87.1120 Hillside Classifications.
      5. 87.1130 Average Slope Calculations.
      6. 87.1135 Design Criteria.
      7. 87.1140 Earth Work/Land Forms.
      8. 87.1145 Landscape Requirements.
      9. 87.1150 Architecture/Structure.
      10. 87.1155 Environmental Constraints.
      11. 87.1160 Fire Protection Standards.
      12. 87.1165 Grading.
      13. 87.1170 Access and Parking.
      14. 87.1180 Hillside/Ridgeline Development Plan Approval.
    13. Chapter 12 — CITYWIDE DESIGN GUIDELINES
    14. Chapter 13 — LANDSCAPE REGULATIONS
  14. Division 8 — SPECIFIC USE DESIGN STANDARDS
  15. Division 9 — PLANT PROTECTION AND MANAGEMENT
  16. Division 10 — SOIL AND WATER CONSERVATION
  17. Division 11 — PUBLIC FACILITIES FINANCING

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